Debian 11: Error: apt-get install failed

Community Support Install & Set-Up
1

Hi there! I have read following instructions:

  1. Error: apt-get install failed HELP
  2. Error: apt-get install failed - #3 by chupa

It didn’t helped with my Debian 11 instance. What should I do to install Hestia CP panel? Please, help.

Adding required repositories to proceed with installation:

[ * ] NGINX
[ * ] PHP
[ * ] Apache2
[ * ] MariaDB
[ * ] Hestia Control Panel

Updating currently installed packages, please wait... W: GPG error: https://apt.hestiacp.com bullseye InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A189E93654F0B0E5
E: The repository 'https://apt.hestiacp.com bullseye InRelease' is not signed.
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The installer is now downloading and installing all required packages.
NOTE: This process may take 10 to 15 minutes to complete, please wait...
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Error: apt-get install failed

install.log:

Reading package lists...
Building dependency tree...
Reading state information...
apt-transport-https is already the newest version (2.2.4).
ca-certificates is already the newest version (20210119).
curl is already the newest version (7.74.0-1.3+b1).
dirmngr is already the newest version (2.2.27-2).
gnupg is already the newest version (2.2.27-2).
wget is already the newest version (1.21-1+b1).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Reading package lists...
Building dependency tree...
Reading state information...
Calculating upgrade...
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
2

What happens when you run:

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys A189E93654F0B0E5

Before installing?

3

Hello @eris

Terminal output:

 sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys A189E93654F0B0E5
Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8)).
Executing: /tmp/apt-key-gpghome.kkWGDT57t6/gpg.1.sh --keyserver keyserver.ubuntu.com --recv-keys A189E93654F0B0E5
gpg: keyserver receive failed: Connection timed out
4

Ubuntu 20 - the same problem:

Adding required repositories to proceed with installation:

[ * ] NGINX
[ * ] PHP
[ * ] Apache2
[ * ] MariaDB
[ * ] Hestia Control Panel

Updating currently installed packages, please wait... W: GPG error: https://apt.hestiacp.com focal InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A189E93654F0B0E5
E: The repository 'https://apt.hestiacp.com focal InRelease' is not signed.
|
The installer is now downloading and installing all required packages.
NOTE: This process may take 10 to 15 minutes to complete, please wait...

Error: apt-get install failed